# Feynman AI vs Study Guard

Feynman AI and Study Guard both sit at 4.5 stars, but that hides the real split: 86% of Feynman AI's written reviews are positive against 28% of Study Guard's. Feynman AI also leads on monetization model (free with in-app purchases vs subscription) and device support (3 vs 1). Study Guard's advantage is ratings volume (376 vs 57). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Feynman AI sells 9 in-app purchases, starting at $5.99 per 7 days and Study Guard sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Feynman AI against 4.6 for Study Guard. That said, the two scores are not equally well evidenced: Study Guard has 376 ratings behind it against 57, so its average is the more settled of the two. Written reviews are what separate them: 86% of Feynman AI's written reviews are positive against 28% of Study Guard's.

Feynman AI ships an update fortnightly, Study Guard every 2 weeks. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Feynman AI | Study Guard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (57 ratings)](https://appshunter.io/ios/app/feynman-ai-study-and-memorize/id6738724586/reviews) | **[4.6 (376 ratings)](https://appshunter.io/ios/app/study-guard-study-and-focus/id6744607430/reviews)** |
| Number of ratings | 57 | **376** |
| Positive reviews | **85.7% of reviews** | 28.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 61 MB | 59 MB |
| Requires iOS | **17.0** | 17.4 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Feynman EinsteinAI Note Taker OU](https://appshunter.io/developer/1782064427) | [Jason Mayo](https://appshunter.io/developer/1808403182) |

## What reviewers say

### Feynman AI

[App page](https://appshunter.io/ios/app/feynman-ai-study-and-memorize/id6738724586)

This learning assistant transforms various content like YouTube videos, audio, and PDFs into transcriptions, summaries, and quizzes. It helps users organize notes and access materials on any device for efficient studying.

**Highlights:** Accurate transcriptions, Concise summaries, Automatic quiz generation, Organized notes, Cross-device accessibility, Document analysis

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Monthly Subscription | $14.99 | per month |
| Monthly Subscription | $15.99 | per month |
| 3 Month Subscription | $29.99 | per 3 months |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $39.99 | per year |
| Yearly Subscription | $69.99 | per year |
| 12 Month Subscription | $79.99 | per year |
| Lifetime Access | $89.99 | one-time |


### Study Guard

[App page](https://appshunter.io/ios/app/study-guard-study-and-focus/id6744607430)

This app transforms social media habits into a learning tool. It uses flashcard mastery to unlock social media access, ensuring focused study sessions. Create custom flashcards or generate them automatically from notes and PDFs.

**Highlights:** Social media leverage for motivation, Flashcard accountability for phone access, Custom flashcard creation, AI flashcard generator from notes/PDFs, Social media blocking during study, Progress tracking and insights, Unlimited flashcard sets

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Guard (Weekly) | $4.99 | per 7 days |
| Study Guard Plus | $5.99 | per month |
| Pro Plan (Yearly) | $19.99 | per year |
| Study Guard Plus Yearly | $24.99 | per year |
| Study Guard (Yearly) | $34.99 | per year |
| Study Guard (Lifetime) | $79.99 | one-time |


## Frequently asked questions

### Is Feynman AI free?

Feynman AI is free to download, with in-app purchases available.

### Is Study Guard free?

Study Guard is free to download, with in-app purchases available.

### Which has better reviews, Feynman AI or Study Guard?

Study Guard is rated higher. Feynman AI averages 4.5 out of 5 from 57 ratings, while Study Guard averages 4.6 from 376 ratings.

### Do Feynman AI or Study Guard have ads?

Neither Feynman AI nor Study Guard shows ads.

### Which is updated more often, Feynman AI or Study Guard?

Feynman AI ships an update fortnightly, and Study Guard every 2 weeks. Most recently, Feynman AI was updated on October 20, 2026 and Study Guard on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*